OEM Carrier Control Transformer 208/230V–24V 40VA for Model PF1MNC030010AAAA

This OEM Carrier transformer (part number HT01CN241) is the factory-specified replacement for the Carrier PF1MNC030010AAAA fan coil and air handler unit. The transformer steps down 208/230V line voltage to the 24V AC required by the control board, thermostat, and all low-voltage components in the system. When this transformer fails, the entire control circuit loses power — the result is a completely unresponsive system: no thermostat display response, no relay activation, and no heating or cooling output despite line voltage being present at the unit.

• Specs: 208/230V Primary | 24V Secondary | 40VA Power Rating | OEM Part# HT01CN241 | Factory-matched to Carrier specifications
• OEM vs Generic: This is a genuine Carrier OEM transformer, wound and tested to exact factory tolerances. Generic 40VA transformers vary widely in VA headroom and insulation class, risking premature failure under full accessory load (zone valves, humidifiers, UV lights).
• Install difficulty: 2/5 — Always shut off all power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Confirm 0V at primary terminals before touching wiring. Label all low-voltage leads before removal.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse when ordered by cutoff time.

Compatibility: Designed as a direct OEM replacement for the Carrier PF1MNC030010AAAA fan coil unit. Verify your unit's data plate shows 208/230V primary supply and 24V control circuit before ordering. Our technical team is available to confirm fitment — reach out before you buy for peace of mind. Order today and get back to comfort fast.